Closure cap lining machine



May 27, 1952 3, ANDREW ETAL 2,598,028

CLOSURE CAP LINING MACHINE Filed NOV. 8, 1947 2 SHEETSSHEET 1 FIG.I

ATTORNEYS y 27, 1952 c. AND'REW ET AL ,028

CLOSURE CAP LINING MACHINE Filed NOV. 8, 1947 2 SHEETS-SHEET 2 INVENTORS CHARLES ANDREW FRANK WAITKENS [L4 um/M ATTORNEY S Patented May 27, 1952 CLQSUEEQCABLININGMAQWNEA Charles Andrew and Frank Waitkens,. Brooklyn, N. Y.

l:v n: 011,13 copending applieation Serial No.

ssgsfgtgjna M .1'946fn .w maturedinto a sve l nd mp ed s;-th tos at ne 0 y alth'in, faced 1 2m 11d u r e a he turntable. Blungers push e belt upon which thegcaps, drop Ti ed that mat the... high speeds ne is. otherwise t capable of njbeing ifed to itat the 10m- In accoi'dance witl the presentrinvention We have provided additional means forv assuring aeeurateplacementof. the caps within the holes invth e turntable. such means exerting downward.

pressureion the c'apsas they are moved over the rn able;- pressed;rockableiplate overlyingthe edge of the turntable atnthe loading station, itslower. face. normall-y spaeed dfrom the peripheral area of the turntable over which thecap ere slid to the holes, a. distance less, than the, thickness of a cap. The outer lower edge ofthe plate is rounded the n into the holes and preventing any possible e've rfeeci The plate: performs thev additional U e tgnipe jgmsi, we have are .7 severed vfrom a 4 51ml tofailining station 9 receive them Thesecaps j nlal urntable-tto which they n station{ by. a re f 0m the strip 7 into the waiting he, fturntahle, carries u pq 't nsp te and sionally overshoot the holes tion, To-prevent this weihave' out grooves oil-th ,tu ntalole, wideasthe holes ato three sixteenths of an 'Ifio fthi's; end we, employ a spring- 2i i n the e ompeeyins ier lees WPMY? 1 1 trated a preferred embodiment of I our invention;

ing "station in greater detail; and" Figure 3 is a vertical seetionalong line 3 3 of Figure 2.

In the operation or the maehine illustrated in these. drawings, unlinedfol "'urejeapsr are loaded on a turntable I at a loading station E smeare toaliningstationBvvh" e d mest i i n nto he ens wh r rnenfth d, capserehi veyed to,,adisehargestation bf The ehine'ds designed t u wqmmsgmms ed sly and; therefore, the punches d es and plungers' 'arein up te R PQhiP n sdl s We i k 'ff nd ejecting two linedicaps simultaneously. "The rn leis rq i dwi bfii h sma hed pair of cap-receiving openings and the loading arrh is de isn iq n e. w p vi r' Unlined, caps l are fed from; a hopper, not shown,,throughwa chute 3 to apontinuouslyinovnsfefl el tt r h. m v s-. s eei l la t left, as shown in Figure 1 and againstja stop at. the loading station, so 7 that. there fxvill a ways be w e n v n adin res lient h' b loading arm 6 is mountedfor oscillation about "a pivot i. This arrn in itsforvgardfrnovementiengages two c aps, the forwardfoneqf which' has en a ed e S o n 1511 5 h i 1 e h ineri hery he. i eb eia i W bede q i sdie seisr etell i sei rt bl i rpa i ided with utm ilqi l s' 2. 15 in its upper face and leading to the holes Bjthe bottoms o hese. utout p rfii nsibeins. n. the me. p a e. i h he. u e Qt lt and mer in wit at hi nednri he e sis fl iheifih turntable. Thehole 8 beingof'sli tly larger diameter, than the caps would per tthezn to fall through were, it n'otfor an areuate supporting plate I Bimmediately below, the turntab1e,,extend-' ing through an are-sofa. little morethanilSO from the loading station, past t l1ning.st atio to the discharge station. During theloading op tionQ just described, 'the turntab-leiis statio n As; o sthe caps ave. en ea he turntable, is, rotated through4 5 to} mov e) theeaps to the;

a guide channel Hi to a pair of intermittently rotated feed rollers IT. From the feed rollers the strip passes between the punches and dies l8, the punches being mounted on the base of the machine, while the dies, depending from a crossbar iii, are reciprocated to engage the punches and punch lining disks from the strip 15 while leaving them in situ.

Carried by and depending from the cross-bar 19, but beyond the dies, are a pair of plungers 2| spaced to engage a pair of severed disks. These plungers are sufficiently longer than the dies, so that at the end of the downward stroke their lower ends will engage the bottoms of the caps at the lining station. Thus on each reciprocation of the cross-bar 9, a pair of lining disks are punched from the strip and a preceding pair, previously punched and severed from the strip, are carried downward by the plungers 2| into the waiting caps at the lining station. On the second forward movement of the turntable, the lined caps are carried beyond the edge of the supporting plate, and normally drop by gravity at the discharge station C upon the upper run of a discharge conveyor belt 22, which carries them to a waiting receptacle 23. Meanwhile the punched strip la proceeds through a guide channel I60. to a cutting mechanism 69 and then to a waste receptacle 24.

In order to insure positive discharge of the lined caps at the discharge station C, we have fixed to the cross-bar Isa forwardly extending plate 25 from which depend a pair of plungers 28, positioned immediately above the holes 8 at the discharge station. These plungers reciprocate with the cross-bar l3 and by engaging the lined caps at the discharge station assure their positive discharge and ejection from the turntable.

We shall not describe the driving mechanism in detail, because of itself it forms no part of the a present invention, and the reader may find it fully described in our previously mentioned copending application Serial No. 656,764, now Patent 2,567,141; in our copending application Serial No. 666,153, filed April 30, 1946, now abandoned; and in our copending application Serial No. 777,560, filed Oct. 2, 1947, now abandoned. For our present purpose it is sufficient to point out that the turntable is intermittently rotated by a Geneva movement on the upper end of whose driver shaft is mounted a collar 52 to which is afiixed an eccentric pin 53 connected by means of a bar 54 to the loading arm 6. Thus oscillation of this arm is synchronized with the intermittent rotation of the turntable, and feeds caps at the loading station to the holes in the turntableas we shall now describe in some detail.

Overlying the stop 5, the inner end of the arm 6 and the holes 8 at the loading station is a cover 8|, preferably made of Lucite or other transparent plastic. This cover has a rectangular opening 82 immediately over the loading station, and in this opening is loosely seated a metal plate 83 having a beveled forward edge 84 and provided with flanges 85 which overlie the cover and support the plate. This plate, when horizontal and when its flanges are in engagement with cover 8], extends about of an inch below the underface of the cover to within a distance of the thinned peripheral edge 88 of the turntable, which distance is less than the thickness or height of a cap I. A bar 81 lying radially of the turntable extends over the middle of the plate 83 and is pivotally mounted to be swung about the vertical axis of screw 88 passing through one end of the bar and into the cover plate. The other end of the bar is provided with an open notch 89 designed to embrace a setscrew 90 and when in that position the bar can be clamped in place by means of the knurled head 9! of the setscrew.

Between the screws 88 and 99, but nearer the former, the bar 81 is provided with a boss 92 drilled to form an opening 93 narrowed at its upper end by an annular flange 94. Extending through this opening 93 is a threaded pin 95, provided at its lower end with a head 96, at its upper end with an adjusting nut 91 and intermediate the two with a fixed collar 98. Encircling the pin and held between the flange 94 and the collar 98, is a compression coil spring 99 which presses the head 98 against the upper face of the plate 83 and holds it yieldably in position within the opening 82.

The apparatus just described operates as follows: A constant stream of empty caps is fed through the chute 3 and carried by the belt 4 to a position against the stop 5 at the loading station where there are two holes 8 in the turntable in readiness to receive two caps, as shown. Thereupon the arm 6 is swung inwardly, engaging two foremost caps and sliding them from the upper run of the belt 4 and between the lower face of the plate 83 and the upper face of the thin peripheral edge 86 of the turntable. This action tilts plate 83 upward about its rear or inner flange under the resistance of gravity and the pressure of the spring 99. Once the caps have passed the pin 98, the plate 83 is tilted about its outer flange, and continues to exert pressure on the caps, although because of the position of the pin 98, a pressure slightly less than the initial pressure. Thus as the caps approach the holes 8, they are under pressure exerted by the plate 83 and the spring 99, and are forced gently into position within those holes. The plate 83 with its associated parts performs two functions: it prevents premature movement of a cap onto the turntable due to the pressure of the oncoming stream of caps and prevents over-feed of caps beyond holes 8. Because of the staggered position of the punches and dies, one hole 8 of each pair is farther from the periphery of the turntable than the other; thus one cap of each pair must be carried farther than the other at the loading station. We accomplish this by shaping the cap-contacting edge of the arm 6, as shown in the drawings.

We claim:

1. A machine for lining closure caps comprising a lining station, a turntable for carrying caps to the lining station, the turntable having holes for receiving the caps slightly larger than the caps, a loading station, means at the loading station for feeding caps over the turntable to the holes in the turntable, a cover over the loading station, a rockable plate normally extending through the cover to a distance from the turntable less than the height or a cap and supported by the cover, said plate having a beveled edge adjacent the loading station, a. bar on the cover extending over the plate, a spring-pressed pin in the bar bearin against the top of the plate, whereby the caps are pressed into the holes, means at the lining station for placing lining disks in the caps, and a support for the caps in the turntable extending from the loading station, past the lining station to the discharge station, a discharge station for the lined caps.

2. A machine for lining closureoaps comprising a lining station, a turntable for carrying caps to the lining station, the turntable having holes for receiving the caps slightly larger than the caps, a loading station, means at the loading station for feeding the caps over the turntable to the holes in the turntable, a yieldably mounted plate at the loading station overlying the turntable and normally spaced from it a distance less than the height of a cap for exerting downward pressure on the caps as they are fed over the turntable to the holes whereby the caps are pressed into the holes, said plate having a lower surface shaped to permit admission of a cap between it and the turntable, means at the lining station for placing lining disks in the caps, a discharge station for the lined caps, and a support for the caps in the turntable extending from the loading station past the lining station to the discharge station.

3. A machine for lining closure caps comprising a lining station, a turntable for carrying caps to the lining station, the turntable having holes for receiving the caps slightly larger than the caps, a loading station, means at the loading station for feeding caps over the turntable to the holes in the turntable, a cover over the loading station, a rockable plate normally extending through the cover to a distance from the turntable less than the height of a cap and supported by the cover, said plate having a lower surface shaped to permit admission of a cap between it and the turntable, a bar on the cover extending over the plate, a spring-pressed pin in the bar bearing against the top of the plate, whereby the caps are pressed into the holes, means at the lining station for placing lining disks in the caps, a discharge station for the lined caps, and a support for the caps in the turntable extending from the loading station, past the lining station to the discharge station.

4. A machine for lining closure cap comprising a lining station, a turntable for carrying caps to the lining station, the turntable having holes for receiving the caps slightly larger than the caps, a loading station, means at the loading station for feeding caps over the turntable to the holes in the turntable, a rockable plate yieldably mounted at the loading station and normally extendin to a distance from the turntable less than the height of a cap, said plate having a lower surface shaped to permit admission of a cap between it and the turntable, whereby caps fed. over the turntable to the hole are pressed into the holes, means at the lining station for placing lining disks in the caps, a discharge station for the lined caps, and a support for the caps in the turntable extending from the loading station past the lining station to the discharge station.

5. A machine for lining closure caps according to claim 4 in which the rockable plate has a beveled edge adjacent the loading station.

CHARLES ANDREW. FRANK WAITKENS.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 837,008 Stewart Nov. 27, 1906 993,288 Bartlett May 23, 1911 1,154,244 Graham Sept. 21, 1915 1,318,416 Stabler Oct. 14, 1919 1,381,055 Binder June 7, 1921 2,179,755 Newman Nov. 14, 1939 2,287,356 Newman June 23, 1942 2,339,807 Rau Jan. 25, 1944 2,348,464 Geertsema May 9, 1944 

